Snap-fastener



A. S. O. NELSON.

SNAP FASTENER.

APPLICATION FILED OCT. II. 1911.

1 ,309,586. Patented J 1113' 8, 1919.

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ALBERT S. O. NELSON, OF CICERO, ILLINOIS.

SNAP-FASTENER.

Specification of Letters Patent.

Patented July 8, 1919.

Application filed October 11, 1917. Serial No. 195,949.

To all whom it may concern Be it known that I, ALBERT S. O. NELSON, a citizen of the United States, residing at Cicero, in the county of Cook and State of Illinois, have invented new and useful Improvements in Snap-Fasteners, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to snapfasteners such as'are used on dresses, gloves, etc., an object being to provide an improved and simplified device of this character which is positive in its holding operation, easily separated, and cheap to manufacture.

One of the,features of my invention resides in the'provision of a flat snap-plate 'having inwardly-extending integral blades which yield as the button is inserted and snap back of the ball end to yieldingly hold the parts together. One advantage of this type of snap-plate is that it is fiat and lies so close to the cloth that there is practically no space for the accumulation of dirt. It may also be passed through a wringer without injury, and is reversible; it may be sewed to the garment either way.

My invention is illustrated in preferred forms in the accompanying drawings, in which Figure 1 is a plan view of one form of the snap-plate or yieldingportion of the dev1ce;

Fig.2 is a plan view of the button portion of the device;

Fig. 3 is a cross section along the line 3-3 of Fig. 1;

Fig. 4 is a cross section along the line 44 of Fig. 2;

Fig. 5 is a cross section through the snapplate and button portions showing the action of the snap-springs'just as the button is being snapped in;

Fig. 6 is a side view of the button snapped into the plate;

Fig. 7 is another form of snap-plate, in which the snap-springs are separated from the body portion by shearing or slitting; and Fig. 8 is another form having sheared or slitted snap-springs.

Snap-fasteners as ordinarily used for dresses, gloves, and the like, are made from one-quarter to one-half inch in diameter, but, 1n order to more clearly illustrate my invention, I have shown it several times the actual size ordinarily employed. However, it is to be understood that my invention is not limited to any particular size, but 15 to be made according to the use to which it is to be put.

Thesnap-plate or yielding portion of the device is preferablystamped out of sheetmetal having a double curl at its peripheral edge 1 and nicely rounded so as to present a smooth surface to the fastening thread. As shown in Fig. 1, the circular or1f ices 2 are shaped to provide suitable spring blades 3 and to permit sewing the snap-plate to the garment. These blades 3 are separated at 4 so as to permit of an in dependent action of the two blades, the metal being preferably sheared at point l so that there is practically no clearance between the contiguous edges of the springs 3. At the peripheral ends of the springs 3 the metal is bent on a short radius 5, so that as the springs 3 are moved there is a compound action of the springs, the springs moving both laterally and pivotally, the lateral movement being due to the yielding function of the portions 6, as is more clearly shown in Figs. 3 and 5. The central opening 8 is slightly smaller than the head of the button, so as to snap behind the tip of the head when the button is pressed into place.

The button is preferably pressed out of thin sheet-metal, as shown in Figs. 2 and 1, having a circular head 9 slightly enlarged and rounded at its tip 10 so that the spring blades may snap into the recess 11. Suitable holes 12 are provided in the button so that it may be sewed to the garment. These holes 12 are punched in the flange 13 and may be of any desired number.

In the use of the device, the button is sewed to one part of the garment and the snap-plate or yielding portion to another part of the garment. This snap-plate or yielding portion, it will be noted, is reversible and may be attached with either side to the garment. This is possible due to the fact that the springs 3 extend through a central plane of the rim 1. The button may be snapped into place from either side.

In pressing the button into locked posi tion, as shown in Figs. 5 and 6, the springs 3 really partake of a compound movement. 2'. 0., a pivotal movement from point 5, and a lateral movement due tothe yielding of the short sections 6. As the button moves inwardly, the springs 3 yield until the tip 7 button in holding position.

To separate the fastener, the parts arepulled apart in the usual way, the springs 3 yielding so as to free the button when it is pulled out.

In Fig. 7 a modified form of snap-plate is shown, in which spring-blades 3 are separated from the body by shearing or slitting at 1* and providing openings 15 for sewing. This leaves more metal at 16 so that the peripheral edge 1 may be more readily curled. In the drawing the slit 14 is shown with its edges slightly separated, but this showing is exaggerated in order to more clearly illustrate the construction.

In Fig. 8 another form of snap-plate is shown, being similar to that of Fig. 7 but having straight slits 14 instead of curved as in Fig. 7. V

For the purpose of illustrating my invention I have shown several forms, but it will be apparent that changes and modifications will readily occur to those skilled in the art, and therefore I do not desire to be limited to the forms shown but aim to cover all that which comes within the spirit and scope of the appended claims.

WVhat I claim as new and desire to secure by Letters Patent of the United States is:

1. A sheet-metal snap-plate for snap-fas teners comprising a curled peripheral rim having a, pair of integral flat springs proectlng inwardly from an edge of the rim 2. A snap-fastener comprising asnapplate having a double-curled peripheral rim, and fiat springs projecting inwardly from an edge of one curl, said springs meeting at the center and adapted to engage a button, said springs having contiguous edges transverse to the rim.

*3. A sheet-metal snap-plate for snap-fasteners comprising a curled peripheral rim, and flat springs projecting inwardly from between the edges of the rim and suitably formed at their inner ends to embrace the button-head when pressed into position between the springs, said springs having contiguous edges transverse to the rim.

4. A.sheet-metal snap-plate for snap fasteners comprising a peripheral rim, a pair of integral springs projecting inwardly from said edge and shaped to snap over the button head when pressed into position between the springs, said springs having sheared contiguous meeting edges.

5. A sheet-metal snap-plate for snap-fasteners comprising a, peripheral rim, and

flat integral snap-springs projecting inwardly from said rim whereby the snapplate is reversible for securing purposes, said springs having contiguous edges transverse to the rim.

In witness whereof, I have hereunto subscribed my name.

ALBERT O. NELSON. 

